Fix for #217

thouska · May 27, 2019 · 42007e4 · 42007e4
1 parent 1346975
commit 42007e4
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/spotpy/database/csv.py b/spotpy/database/csv.py
@@ -23,13 +23,19 @@ def __init__(self, *args, **kwargs):
         if kwargs.get('dbappend', False) is False:
             print("* Database file '{}.csv' created.".format(self.dbname))
             # Create a open file, which needs to be closed after the sampling
-            self.db = io.open(self.dbname + '.csv', 'w')
+            mode = 'w'
+            if sys.version_info.major < 3:
+                mode += 'b'
+            self.db = io.open(self.dbname + '.csv', mode)
             # write header line
             self.db.write(unicode(','.join(self.header) + '\n'))
         else:
             print("* Appending to database file '{}.csv'.".format(self.dbname))
             # Continues writing file
-            self.db = io.open(self.dbname + '.csv', 'a')
+            mode = 'a'
+            if sys.version_info.major < 3:
+                mode += 'b'
+            self.db = io.open(self.dbname + '.csv', mode)
 
     def save(self, objectivefunction, parameterlist, simulations=None, chains=1):
         coll = (self.dim_dict['like'](objectivefunction) +